Other
Phosphides, whether or not chemically defined, excluding ferrophosphorous; other inorganic compounds (including distilled or conductivity water and water of similar purity); liquid air (whether or not rare gases have been removed); compressed air; amalgams, other than amalgams of precious metals: > Other: > Other
Duty Rate (from China)
Except as provided in headings 9903.88.13, 9903.88.18, 9903.88.33, 9903.88.34, 9903.88.35, 9903.88.36, 9903.88.37, 9903.88.38, 9903.88.40, 9903.88.41, 9903.88.43, 9903.88.45, 9903.88.46, 9903.88.48, 9903.88.56, 9903.88.64, 9903.88.66, 9903.88.67, 9903.88.68, or 9903.88.69, articles the product of China, as provided for in U.S. note 20(e) to this subchapter and as provided for in the subheadings enumerated in U.S. note 20(f)
Articles the product of any country, as provided for in subdivision (aa)(ii) of U.S. note 2 to this subchapter
Products classified under HTS 2853.90.90
Copper Phosphide (Phosphor Copper)
Copper phosphide, containing more than 15% phosphorus by weight, used in metallurgy for deoxidizing and alloying. Classified under HTS 2853.90.90 as per Chapter Note 7, which explicitly includes it in heading 2853. It is an inorganic compound of phosphorus and copper, not chemically excluded.
Zinc Phosphide Powder
Chemically defined zinc phosphide (Zn3P2) used as rodenticide active ingredient or in semiconductors. Falls under HTS 2853.90.90 as other phosphides, inorganic compounds per heading scope excluding ferrophosphorous. Highly reactive with moisture, producing phosphine gas.
Aluminum Phosphide Tablets
Tableted aluminum phosphide (AlP) for fumigation, generating phosphine gas. Classified in 2853.90.90 as chemically defined phosphide, inorganic compound under heading 2853. Excludes only ferrophosphorous per hierarchy.
Distilled Water USP Grade
Ultra-pure distilled water meeting USP standards for pharmaceutical use. HTS 2853.90.90 covers 'distilled or conductivity water and water of similar purity' explicitly. Free of ions, used in injections and labs.
Liquid Air (Synthetic)
Liquefied atmospheric air, rare gases not removed, used for cryogenic cooling. Falls under HTS 2853.90.90 as 'liquid air (whether or not rare gases have been removed)'. Inorganic compressed/liquefied gas mixture.
Dental Amalgam Alloy
Silver-tin-mercury amalgam powder for dental fillings, excluding precious metal amalgams. HTS 2853.90.90 includes 'amalgams, other than amalgams of precious metals'. Chemically defined alloy for restorative dentistry.
Conductivity Water ASTM Type I
ASTM Type I conductivity water with resistivity >18 MΩ·cm for semiconductor rinsing. Specifically named in 2853.90.90 as 'water of similar purity'. Ultra-pure for electronics manufacturing.
Calcium Phosphide Granules
Granular Ca3P2 phosphide for pyrotechnics and signal flares, generating phosphine. Inorganic phosphide under 2853.90.90, chemically defined excluding ferrophosphorous. Highly hazardous material.
Compressed Air Cylinders
High-pressure compressed atmospheric air in DOT cylinders for pneumatic tools. Explicitly covered by HTS 2853.90.90 as 'compressed air'. Mixture retaining natural gas composition.
Magnesium Phosphide Pellets
Pelleted Mg3P2 for grain fumigation in agriculture. Chemically defined phosphide classified in 2853.90.90 as other inorganic compounds/phosphides. Releases phosphine on contact with water.